▎ 摘　　要

NOVELTY - Production of graphene-metal composite electromagnetic shielding film involves mixing 1 pt. wt. graphene and 5-150 pts. wt. solvent, dispersing, obtaining graphene dispersion liquid, extruding resultant product at speed of 10-1000 mL/hour, adding coagulation liquid, curing at 10-80 degrees C for 1-100 seconds, drying, forming high-strength graphene oxide film, and depositing metal nanoparticles on both sides of the high-strength graphene oxide film with thickness of 0.01-1000 mu m by physical or chemical plating deposition process. USE - Production of graphene-metal composite film used in electromagnetic shielding and absorbing applications. ADVANTAGE - The method enables production of graphene-metal composite electromagnetic shielding film having adjustable thickness and size, micro-structural regularity, and excellent electroconductivity. DETAILED DESCRIPTION - Production of graphene-metal composite electromagnetic shielding film involves mixing 1 pt. wt. graphene and 5-150 pts. wt. solvent, dispersing, obtaining graphene dispersion liquid, extruding resultant product at speed of 10-1000 mL/hour, adding coagulation liquid, curing at 10-80 degrees C for 1-100 seconds, drying, forming high-strength graphene oxide film, and depositing metal nanoparticles on both sides of the high-strength graphene oxide film with thickness of 0.01-1000 mu m by physical or chemical plating deposition process. The metal nanoparticles contain gold, silver, aluminum, copper, iron, zinc, chromium, nickel, cobalt, platinum, palladium, iridium, rhodium, ruthenium, titanium, vanadium, magnesium, indium, lanthanum, indium and/or antimony. The physical deposition process is vacuum deposition, sputtering coating process, electric arc plasma plating process, ion plating process and molecular beam epitaxy. The solvent is water, N-methylpyrrolidone, acetone, dimethyl sulfoxide, pyridine, dioxane, N,N-dimethylformamide, N,N-dimethylacetamide, tetrahydrofuran, butanone, ethylene glycol and/or diethylene glycol. The coagulation liquid contains methanol, ethanol, ethyl acetate, n-butanol, ethanediol, cyclohexanone, glycerin, butyl acetate, propylene glycol, n-propyl acetate, acetic acid, isobutanol and/or methyl acetate.